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Dekyi, Xiao Y, Wang X, Feng S, Wang Y, Liao L, Wang S, Deng Y, Zheng J, Zhao D. Predominance of A2063G mutant strains in the Mycoplasma pneumoniae epidemic in children: A clinical and epidemiological study in 2023 in Wuhan, China. Int J Infect Dis 2024; 145:107074. [PMID: 38734057 DOI: 10.1016/j.ijid.2024.107074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
OBJECTIVES The prevalence of respiratory infectious diseases has changed in the post-COVID-19 epidemic era, and mycoplasma pneumoniae (MP) infection in children has attracted wide attention. METHODS Children hospitalized for pneumonia in Wuhan, China, in 2023 were enrolled. Respiratory secretions were obtained for the targeted next-generation sequencing (tNGS) including mutation of MP. Pulmonary inflammation was divided into bronchopneumonia and pulmonary consolidation/atelectasis according to lung computed tomography imaging. RESULTS Of the 667 pediatric pneumonia, 478 were MP positive (72%). The positive rate of MP detected by tNGS increased from April, and MP had become the primary pathogen of pneumonia in children in 2023. The 23S rRNA mutations were all A2063G, accounting for 85% of detected MP. The clinical symptoms of the mutant and wild-type strains were similar, with half of them experiencing atelectasis and lung consolidation. Early bronchoscopic lavage combined with azithromycin in pediatric pulmonary consolidation was an effective therapy strategy, which could be an alternative selection to MP pneumonia treatment. CONCLUSIONS A2063G mutant strain MP was the primary pathogen of mycoplasma pneumoniae in children recently, which was often complicated by extra-pulmonary symptoms and complications.
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Affiliation(s)
- Dekyi
- Department of Pediatrics, Women and Children's Hospital, Zhongnan Hospital, Wuhan University, China
| | - Yujia Xiao
- Department of Pediatrics, Women and Children's Hospital, Zhongnan Hospital, Wuhan University, China
| | - Xia Wang
- Department of Pediatrics, Women and Children's Hospital, Zhongnan Hospital, Wuhan University, China
| | - Shuwen Feng
- Department of Pediatrics, Women and Children's Hospital, Zhongnan Hospital, Wuhan University, China
| | - Yuxin Wang
- Department of Pediatrics, Women and Children's Hospital, Zhongnan Hospital, Wuhan University, China
| | - Lihong Liao
- Department of Pediatrics, Women and Children's Hospital, Zhongnan Hospital, Wuhan University, China
| | - Shouyi Wang
- Department of Pediatrics, Women and Children's Hospital, Zhongnan Hospital, Wuhan University, China
| | - Youping Deng
- Department of Pediatrics, Women and Children's Hospital, Zhongnan Hospital, Wuhan University, China
| | - Junwen Zheng
- Department of Pediatrics, Women and Children's Hospital, Zhongnan Hospital, Wuhan University, China; Children's Digital Health and Data Center, Wuhan University, China
| | - Dongchi Zhao
- Department of Pediatrics, Women and Children's Hospital, Zhongnan Hospital, Wuhan University, China; Children's Digital Health and Data Center, Wuhan University, China.
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Meyer Sauteur PM, Beeton ML. Pneumonia outbreaks due to re-emergence of Mycoplasma pneumoniae. THE LANCET. MICROBE 2024; 5:e514. [PMID: 38342111 DOI: 10.1016/s2666-5247(23)00406-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 02/13/2024]
Affiliation(s)
- Patrick M Meyer Sauteur
- Division of Infectious Diseases and Hospital Epidemiology, University Children's Hospital Zurich, Zurich CH-8032, Switzerland.
| | - Michael L Beeton
- Microbiology and Infection Research Group, Department of Biomedical Sciences, Cardiff Metropolitan University, Cardiff, UK
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Li H, Li S, Yang H, Chen Z, Zhou Z. Resurgence of Mycoplasma pneumonia by macrolide-resistant epidemic clones in China. THE LANCET. MICROBE 2024; 5:e515. [PMID: 38244553 DOI: 10.1016/s2666-5247(23)00405-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 12/12/2023] [Accepted: 12/12/2023] [Indexed: 01/22/2024]
Affiliation(s)
- Heng Li
- Key Laboratory of Alkene-Carbon Fibers-Based Technology & Application for Detection of Major Infectious Diseases, Pasteurien College, Suzhou Medical College, Soochow University, Suzhou 215123, China; MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Suzhou Medical College, Soochow University, Suzhou, China
| | - Shengkai Li
- Key Laboratory of Alkene-Carbon Fibers-Based Technology & Application for Detection of Major Infectious Diseases, Pasteurien College, Suzhou Medical College, Soochow University, Suzhou 215123, China; MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Suzhou Medical College, Soochow University, Suzhou, China
| | - Huajiang Yang
- Key Laboratory of Alkene-Carbon Fibers-Based Technology & Application for Detection of Major Infectious Diseases, Pasteurien College, Suzhou Medical College, Soochow University, Suzhou 215123, China; MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Suzhou Medical College, Soochow University, Suzhou, China
| | - Zhengrong Chen
- Department of Respiratory Disease, Children's Hospital of Soochow University, Suzhou, China.
| | - Zhemin Zhou
- Key Laboratory of Alkene-Carbon Fibers-Based Technology & Application for Detection of Major Infectious Diseases, Pasteurien College, Suzhou Medical College, Soochow University, Suzhou 215123, China; MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Suzhou Medical College, Soochow University, Suzhou, China; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
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Ai L, Liu B, Fang L, Zhou C, Gong F. Comparison of Mycoplasma pneumoniae infection in children admitted with community acquired pneumonia before and during the COVID-19 pandemic: a retrospective study at a tertiary hospital of southwest China. Eur J Clin Microbiol Infect Dis 2024; 43:1213-1220. [PMID: 38613707 DOI: 10.1007/s10096-024-04824-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 04/03/2024] [Indexed: 04/15/2024]
Abstract
PURPOSE The COVID-19 pandemic has notably altered the infection dynamics of various pathogens. This study aimed to evaluate the pandemic's impact on the infection spectrum of Mycoplasma pneumoniae (M. pneumoniae) among children with community acquired pneumonia (CAP). METHODS We enrolled pediatric CAP patients admitted to a tertiary hospital in southwest China to compare the prevalence and characteristics of M. pneumoniae infections before (2018-2019) and during (2020-2022) the COVID-19 pandemic. Detection of M. pneumoniae IgM antibodies in serum were conducted using either indirect immunofluorescence or passive agglutination methods. RESULTS The study included 1505 M. pneumoniae-positive and 3160 M. pneumoniae-negative CAP patients. Notable findings were the higher age and frequency of pneumonia-associated symptoms in M. pneumoniae-positive patients, alongside a lower male proportion and fewer respiratory co-infections. The year 2019 saw a notable increase in M. pneumoniae infections compared to 2018, followed by a decline from 2020 to 2022. The COVID-19 pandemic period witnessed significant alterations in age distribution, male proportion, and co-infections with specific pathogens in both M. pneumoniae-positive and negative patients. The M. pneumoniae infections were predominantly seasonal, peaking in autumn and winter during 2018 and 2019. Although there was a sharp drop in February 2020, the infection still peaked in cold months of 2020 and 2021. However, the typical seasonal pattern was nearly absent in 2022. CONCLUSIONS The COVID-19 pandemic has markedly changed the infection landscape of M. pneumoniae in pediatric CAP patients, with shifts observed in infection rates, demographic profiles, co-infections, and seasonal patterns.
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Affiliation(s)
- Ling Ai
- Department of General Practice, Yongchuan Hospital of Chongqing Medical University, No. 439, Xuanhua Street, Chongqing, 402160, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China
- Central Laboratory, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China
| | - Beizhong Liu
- Central Laboratory, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China
- Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China
| | - Liang Fang
- Central Laboratory, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Chanjuan Zhou
- Central Laboratory, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Fang Gong
- Department of General Practice, Yongchuan Hospital of Chongqing Medical University, No. 439, Xuanhua Street, Chongqing, 402160, China.
- Central Laboratory, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China.
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China.
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Wang F, Cheng Q, Duo H, Wang J, Yang J, Jing S, Li J, Zhou X, Shang Y, Chen N, Tian Z, Zhang H, Cai X. Childhood Mycoplasma pneumoniae: epidemiology and manifestation in Northeast and Inner Mongolia, China. Microbiol Spectr 2024; 12:e0009724. [PMID: 38606996 PMCID: PMC11064562 DOI: 10.1128/spectrum.00097-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/18/2024] [Indexed: 04/13/2024] Open
Abstract
Mycoplasma pneumoniae (MP) is commonly detected in children. However, the epidemiological trends of MP in Northeast (NE) China are unclear. This retrospective study aimed to investigate the prevalence of MP infections in this understudied region. The clinical manifestations and bronchoscopic findings observed in hospitalized patients with severe Mycoplasma pneumoniae pneumonia (SMPP) were collected from comprehensive data obtained from six tertiary hospitals in NE and Inner Mongolian (IM) China, from 1 January 2017 to 31 December 2023. A total of 5,593,530 children who visited the outpatient and emergency departments, and 412,480 inpatient hospitalized children were included in the study. The positivity rate of MP immunoglobulin M (IgM) in the children who visited the outpatient and emergency departments varied from 7.80% to 10.12%, whereas that of MP infection in hospitalized children ranged from 27.18% to 30.10%. Children hospitalized for MP infection were mainly concentrated in the 1- to 4-year (41.39%) and 4- to 7-year (24.25%) age groups. Before 2020, the season with the highest incidence of MP was winter. After the implementation of non-pharmaceutical interventions (NPIs), the MP epidemic season changed, and the number of children with MP infections decreased; however, the proportion of MP infections in hospitalized children did not change significantly. Starting from August 2023, the MP infection rate in outpatient, emergency, and hospitalized children increased sharply, with SMPP and its complications (e.g., plastic bronchitis and pleural effusion) increasing significantly. MP is prevalent in NE and IM, China. When the NPIs ended, MP infection showed a delayed outbreak trend, and the number of children with severe infection increased significantly. IMPORTANCE In Northeastern (NE) and Inner Mongolia (IM), the incidence of Mycoplasma pneumoniae (MP) infections, including severe Mycoplasma pneumoniae pneumonia (SMPP), is high, posing health risks and imposing substantial economic burdens on the local population. Therefore, it is imperative to prioritize the study of MP prevalence and address the research gaps in MP epidemiology in these areas of China. We obtained a comprehensive collection of pediatric outpatient, emergency, and inpatient data from six public Grade III hospitals. We believe that our study makes a significant contribution to the literature because understanding regional variations in MP infections can help healthcare professionals tailor prevention and treatment strategies, and studying bronchoscopic manifestations can provide insights into the impact of the disease on the respiratory system, potentially leading to a more effective clinical management.
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Affiliation(s)
- Fei Wang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Qi Cheng
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Hongying Duo
- Department of Pediatrics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Jichun Wang
- Department of Pediatrics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Jingjing Yang
- Diagnosis and Treatment Center for Children, The Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, Jilin, China
| | - Shujun Jing
- Department of Respiratory Medicine, Dalian Women and Children’s Medical Center Group, Dalian, Liaoning, China
| | - Jing Li
- Department of Pediatrics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Xiandong Zhou
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yunxiao Shang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ning Chen
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Zhiliang Tian
- Department of Pediatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Han Zhang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xuxu Cai
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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